81786320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:130

約数の個数: 240

約数和(自身を含む): 256483584

約数和(自身を除く): 174697264

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 71, 77, 80, 85, 88, 110, 112, 119, 121, 136, 140, 142, 154, 170, 176, 187, 220, 238, 242, 272, 280, 284, 308, 340, 355, 374, 385, 440, 476, 484, 497, 560, 568, 595, 605, 616, 680, 710, 748, 770, 781, 847, 880, 935, 952, 968, 994, 1136, 1190, 1207, 1210, 1232, 1309, 1360, 1420, 1496, 1540, 1562, 1694, 1870, 1904, 1936, 1988, 2057, 2380, 2414, 2420, 2485, 2618, 2840, 2992, 3080, 3124, 3388, 3740, 3905, 3976, 4114, 4235, 4760, 4828, 4840, 4970, 5236, 5467, 5680, 6035, 6160, 6248, 6545, 6776, 7480, 7810, 7952, 8228, 8449, 8470, 8591, 9520, 9656, 9680, 9940, 10285, 10472, 10934, 12070, 12496, 13090, 13277, 13552, 14399, 14960, 15620, 16456, 16898, 16940, 17182, 19312, 19880, 20570, 20944, 21868, 24140, 26180, 26554, 27335, 28798, 31240, 32912, 33796, 33880, 34364, 39760, 41140, 42245, 42955, 43736, 48280, 52360, 53108, 54670, 57596, 60137, 62480, 66385, 67592, 67760, 68728, 71995, 82280, 84490, 85910, 87472, 92939, 96560, 104720, 106216, 109340, 115192, 120274, 132770, 135184, 137456, 143990, 146047, 164560, 168980, 171820, 185878, 212432, 218680, 230384, 240548, 265540, 287980, 292094, 300685, 337960, 343640, 371756, 437360, 464695, 481096, 531080, 575960, 584188, 601370, 675920, 687280, 730235, 743512, 929390, 962192, 1022329, 1062160, 1151920, 1168376, 1202740, 1460470, 1487024, 1858780, 2044658, 2336752, 2405480, 2920940, 3717560, 4089316, 4810960, 5111645, 5841880, 7435120, 8178632, 10223290, 11683760, 16357264, 20446580, 40893160, 81786320]

約数ペア:

[(1, 81786320), (2, 40893160), (4, 20446580), (5, 16357264), (7, 11683760), (8, 10223290), (10, 8178632), (11, 7435120), (14, 5841880), (16, 5111645), (17, 4810960), (20, 4089316), (22, 3717560), (28, 2920940), (34, 2405480), (35, 2336752), (40, 2044658), (44, 1858780), (55, 1487024), (56, 1460470), (68, 1202740), (70, 1168376), (71, 1151920), (77, 1062160), (80, 1022329), (85, 962192), (88, 929390), (110, 743512), (112, 730235), (119, 687280), (121, 675920), (136, 601370), (140, 584188), (142, 575960), (154, 531080), (170, 481096), (176, 464695), (187, 437360), (220, 371756), (238, 343640), (242, 337960), (272, 300685), (280, 292094), (284, 287980), (308, 265540), (340, 240548), (355, 230384), (374, 218680), (385, 212432), (440, 185878), (476, 171820), (484, 168980), (497, 164560), (560, 146047), (568, 143990), (595, 137456), (605, 135184), (616, 132770), (680, 120274), (710, 115192), (748, 109340), (770, 106216), (781, 104720), (847, 96560), (880, 92939), (935, 87472), (952, 85910), (968, 84490), (994, 82280), (1136, 71995), (1190, 68728), (1207, 67760), (1210, 67592), (1232, 66385), (1309, 62480), (1360, 60137), (1420, 57596), (1496, 54670), (1540, 53108), (1562, 52360), (1694, 48280), (1870, 43736), (1904, 42955), (1936, 42245), (1988, 41140), (2057, 39760), (2380, 34364), (2414, 33880), (2420, 33796), (2485, 32912), (2618, 31240), (2840, 28798), (2992, 27335), (3080, 26554), (3124, 26180), (3388, 24140), (3740, 21868), (3905, 20944), (3976, 20570), (4114, 19880), (4235, 19312), (4760, 17182), (4828, 16940), (4840, 16898), (4970, 16456), (5236, 15620), (5467, 14960), (5680, 14399), (6035, 13552), (6160, 13277), (6248, 13090), (6545, 12496), (6776, 12070), (7480, 10934), (7810, 10472), (7952, 10285), (8228, 9940), (8449, 9680), (8470, 9656), (8591, 9520)]